Oral Histology Exam: Trivia Quiz!

20 Questions | By Safeeravly | Last updated: Mar 21, 2022 | Total Attempts: 1487

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Oral Histology Exam: Trivia Quiz! - Quiz

Questions and Answers

1.

In which part of the oral cavity mucous membrane is the thinnest?
- A.
  
  Soft palate
- B.
  
  Labial mucosa
- C.
  
  Floor of mouth
- D.
  
  Buccal mucosa
2.

The tactile threshold of the natural teeth during axial loading is?
- A.
  
  0.001-0.01N
- B.
  
  0.01-0.10N
- C.
  
  0.10-0.5N
- D.
  
  1.2N
3.

The average diameter of coronal dentinal tubules near pulp is?
- A.
  
  0.2-0.5 micron
- B.
  
  2-3 micron
- C.
  
  0.2-0.3 micron
- D.
  
  4-7 micron
4.

Membrana performativa is seen in:
- A.
  
  Bell stage
- B.
  
  Cap satge
- C.
  
  Bud stage
- D.
  
  Advanced bell stage
5.

The proliferation of the basal layer starts in which developmental stages?
- A.
  
  Bud stage
- B.
  
  Cap stage
- C.
  
  Bell stage
- D.
  
  Advanced bell stage
6.

Organization center that orchestrates surface morphogenesis is?
- A.
  
  Enamel knot
- B.
  
  Enamel chord
- C.
  
  Enamel niche
- D.
  
  Enamel mesh
7.

Blood vessels first appear in the papillae in:
- A.
  
  Bud stage
- B.
  
  Cap stage
- C.
  
  Bell stage
- D.
  
  Advanced bell stage
8.

Collagen found in pulp?
- A.
  
  Type 1 and 3
- B.
  
  Type 1 and 2
- C.
  
  Type 1 and 4
- D.
  
  Type 1 only
9.

Anchoring collagen?
- A.
  
  6
- B.
  
  7
- C.
  
  17
- D.
  
  All
10.

Sex determination is possible with which of the following protein?
- A.
  
  Osteopontin
- B.
  
  Tuftelin
- C.
  
  Dentin sialoprotein
- D.
  
  Amelogenin
11.

What is the thickness of the layer of prismless enamel found in primary teeth?
- A.
  
  25 micron
- B.
  
  50 micron
- C.
  
  75 micron
- D.
  
  100 micron
12.

Which of the following is indicative of ageing?
- A.
  
  Expression of dead tracts
- B.
  
  Widening of predentin
- C.
  
  Increase in peritubular diameter
- D.
  
  Increase in peritubular dentin
13.

Atypical dentin is formed due to defect in
- A.
  
  Apposition
- B.
  
  Initiation
- C.
  
  Histodifferentiation
- D.
  
  Morphodifferentiation
14.

Matrix vesicles are derived from?
- A.
  
  Elastin fibres
- B.
  
  Collagen
- C.
  
  Osteoblast
- D.
  
  Inflammatory cells
15.

At what age is a child expected to have 12 erupted primary teeth and 12 erupted permanent teeth.
- A.
  
  4½ years
- B.
  
  6½ years
- C.
  
  8½ years
- D.
  
  12½ years
16.

Blood vessels and nerves are generally scarce in which component of TMJ?
- A.
  
  Anterior portion of disc
- B.
  
  Articular disc
- C.
  
  Posterior portion of disc
- D.
  
  Central portion of disc
17.

At what stage of development of a tooth does dentinogenesis imperfecta occur:
- A.
  
  Initiation
- B.
  
  Proliferation
- C.
  
  Histodifferentiation
- D.
  
  Morphodifferentiation
18.

Chronological hypoplasia is
- A.
  
  Hypoplasia of local origin
- B.
  
  Hypoplasia of systemic origin
- C.
  
  Hypoplasia of hereditary origin
- D.
  
  None of the above
19.

What percentage of dentin contains collagen?
- A.
  
  5%
- B.
  
  19%
- C.
  
  40%
- D.
  
  68%
20.

Non-acidic, nonionic protein which helps in enamel mineralization.
- A.
  
  Tuftelin
- B.
  
  Sheathlin
- C.
  
  Enamelin
- D.
  
  Amelogenin